Baling press



June 2, 1931.

MARKT BALING PRESS Filed July 7, 1950 8 Sheets-Sheet l June 2, 193.1;

8 Sheets-Sheet 2 L. MARKT BALING PRESS Filed July 7, 1930 L. MARKT BALING PRESS June 2, 1931.

Filed July 7,1930 8 Sheets-Sheet 3 mama's!!! BALING PRESS Filed July '7, 1930 8 SheetsSheec 4 gwue ntoc June 2 1931. L. MARKT 1,808,425

BALING PRESS Filed July '7, 1930 8 Sheets-Sheet 5 June 2, 1931.v L. MARKT BALING PRESS Filed July 7, 1930 i8 Sheets-Sheet 6 L. MARKT BALING PRESS June 2, 1931;

Filed Jul 7, 1930 8 Sheets-Sheet 7 June 2, 1931. -r 1,808,425

BALING PRESS Filed July 7, 1930 8 Sheets-Sheet '8 Patented June 2, 1931 UNITED stare LLOYD MARKT, OF

o-aneeiv, ivirssorraa BALING PRESS Application filed July 7,

The invention relates to improvements in baling presses and more particularly to mechanism adapted for use in the baling of hay or materials capable of being baled like hay.

It is an object of the invention to provide a press, such as afhay press, of increased efficiency and capable of ease and simplicity in the gathering and co'mpressi'ng'of hay from windrows. The invention embodies in its design novel operating mechanism with resulting benefits not heretofore attained.

An embodiment of the invention is shown in the accompanying drawings wherein Fig. 1 illustrates the hay gathering and baling machine in vertical section.

Fig. 2 is an enlarged flew of theconveyor and fork mechanism shown in Fig. 1.

Fig. 3 is a plan view of the conveyor.

Fig. 1 shows a horizontal section through the machine, particularly illustrating the op eration of the fork mechanism and the compressing elements.

Fig. 5 is a view taken across the line 5-5 of Fig. 4 and showing means for driving the compression elements. V

' Fig. '6 illustrates the operation of the compressing elements. I

Figs. 7, 8, 9 and 10 are illustrative of-details of the conveying mechanism employed in feeding material to the machine.

Fig. 11 represents an enlarged detail of the tension release members shown in Fig. 4:.

Fig. 12 illustrates a section through the baling end of the machine.

' Fig. 13 is a section atright angles thereto. Fig. 14 is a section taken across the baling chamber and Fig. 15 is a dog to hold the hay against return movement.

Referring to Fig. 1, the'machine isadapted to be mounted on Wheels-as illustrated and is preferably propelled by a tractor to which it may be attached by a suitable coupling device, 1. The tractor, or other power device, is

also utilized to furnish power to operate the hay baling mechanism, and for this purpose, power is supplled from the prime mover to a shaft 2 terminating in a head 3 adaptedfor connection with the prime mover. The shaft '2 supplies the force necessary to operate the 1930-. Serial-N0. 4638,2 85.

several arted the baling machine and the essential parts will new be described in the order oftheirope'ration;

. The baling machine is providedwith a con veyor generally designat'ed'b'y the numeral 4 provided with sides '5 anda trough formed thereby. Running within the trough, and in a counter-clockwise direction as illustrated in Figs. 1 a'nd 2, are a pair of chains '6- 6, one such chain bein positioned on each sideof the conveyor. onnecting the pair of chains,

and adapted for operation thereby and running at right angles thereto are cross bars 7,

a plurality of cross 'bars being employed and spaced a convenient distance apart. Mount ed on each of the crossbars are a numberof tongs 8 as clearly illustrated in Fig. 3. These tongs may be of a heavy steel wire, secured to the cross bars in an appropriate manner, for example by one or more turns aroun'd'the cross bar and fastened thereto as shown at 9 in Figs. 7"and8.

The chains 6 are caused tomove, by suitable drive mechanism to be described, within the body of'fthe "conveyor in'a direction toward the machinefand complete the cycle outside of the conveyor as shown in Figs. 1 and 2. The cross bars are secured to the chains in a pivotal manner and their axesfire rigidly connected toarms 10, illustrated in detail in Fig. '9.

Upon 'the exterior of the conveyor and at the under side thereof is a cam track 11',

positioned as shown in Figs. 1 and 2. During the complete. cycle 'of the'movement of the chains 6, the arms 10, in their passage exteriorof theconve'y'or, are tripped by the cam track 11 and the surface 1 2"fof the arms 1'0 rides on the, cam track ll 'a'nd due to the rigid'securing of the arm :10 to the cross bars, the cross bars are held in fixed relation to the surface of the'cam track, thereby maintaining thepositionpf the tongs at a desired angle to the track. The'angle is approximately'aright angle, or about normal to the cam track as shown in the drawings-.- A suitable method of securing linkage between the elements "of the 'chain '6 and the cross" bars 7 is shown in Fig. 10. Accordingly, it

will be seen that in operation, the chains effect movement of thecross bars throughout their cycle and, during that portion of the passage in which the arms run upon the cam'track 11, the tongs 8 are held at a position about normal to the track and so in effective position to gather'or receive the hay and convey it through the trough toward the baling machine. Upon delivering h'ay to the machine, the arms and tongs are free to assume a natural angle. Provision ismade for a suitable tension device such as the shaft and roller 12 shown in Fig. 2.

In order to operate the conveyor mechanism, power is taken off of the shaft 2, through the fork cranks to be described, and supplied to'a gear 13 in mesh with another gear 14. By means of a shaft 15, power. is transmitted to a gear wheel 16 provided with suitable clutch. mechanism tensioned by a spring 17 and the gear wheel 16 has teeth adapted to drive a chain 17 which, in turn, drives a gear wheel 18 situated at the delivery end of the conveyor mechanism and this gear wheel 18, in turn, effects operation of the van ' t0 the i gfme nism y fOIkS g n ra y noted that the mechanism consists in the uticonveyor chainsabout itself and opposed gear wheel 19. a f An embodiment of the clutch above referred to is illustrated inFig. 11, wherein it will be seen that the shaft 15 extends outwardly and, by a suitable nut 20 effects pressure of a spring 21 on the gear wheel 16 holding it in mesh with a member 22 keyed, as at 2 3, to the shaft 15. The tension ofthe spring is adjusted so that a'breaking load on the conveyor would permitdisengagemen-t of the clutch and let the drive mechanism' run idle without damage to the machine.

" Delivering mechanism The material, such as hay, is thus brought to the body; of the machine and is delivered indicated at 24 in Figs 2 and4. The forks consist ofa' plurality of arms 25, pivotally and angularly mounted to shafts26- which, in turn, are'pivoted as at 27 to a crossbar secured to the machine. As illustrated in the drawings, the forks are arranged for an eccentric movement whereby, upon their feeding stroke, the forks protrude downward into the mass of the materialto be baled and less acute to the direction of travel of the material and thus avoiding tendency .to retractthe hay or other material being delivferred to.

In orderto effect the operation .of the forks,

power is'taken off .ofi the shaft way, for

shaft 37.

example, of pinions 28 and 29 suitably se cured to the shaft. The pinion 28 is meshed with a bevel gear 30 and the pinion 29 with a bevel gear 31, and each of these bevel gears in turn are mountedon a stub shaft driving the cranks on the respective sides of the main drive shaft 2. order to efiect uniform rotation of the cranks and forks it is desirable that the angular velocity of the bevel gears 30 and 31'be the same and, for this purpose, the gear ratio of the respective pinions to the bevel gears is the same, that is, a small pinion is caused to drive a small gear and a large pinion is caused to drive a larger gear. A ratio between pinions and their corresponding bevel gears is conveniently 1 to 5.25.

isfan entirely new departure in the art so far asI am aware. Powerto operate thebaling mechanism is taken from'the main shaft 2,

preferably by a screw and worm connection as indicated in Fig. 5 wherein the end of the shaft 2 terminates in a screw and drives a worm gear 32 keyed, as at 3.3, to a shaft 34. The shaft 34 extends in both directions laterally of the machine and each end is toothed as at 35 meshing with respective bevel wheels 36 of which. a pair are employed. The bevel wheels 36 are mounted upon .and secured to vertical shafts 37 which shafts, in turn, drive the baling mechanism. As the baling mechanisms are symmetrical, only one such element need be described but it will be understood that the two mechanisms are employed and that they operate in directions counter to each othersandin the directions to compress material into the balingjchamber. V c

. The improved baling mechanism is illustrated in Figs. 1, 4, 5 and 6 and, with particular references to Figs. 5 and 6, it will be lization of a plurality'of plates 38 adapted to move the hayintothebaling chamber and exert a compressing action thereon. ,As shown in Fig. 6, the two compressing elements are so arranged that theplates of the sep- I arate mechanismsfollow each otherin sequence without tendency to an interlocking action and this effect, in addition, performs a continuouscompression on the material being baled. The compressing plates 38 are elbowed from an arm 40 which is pivoted as at 41 to a stub. arm 42 and this, in turn, is pivoted; as at 43 to anarm 44 fixedto. the

. Acompressing plate 38 carries vertically knobs 45, 46 adapted to run in respective up-- per and lower camtracks 47 "and 48.

Mounted also on the axis 37 are radial arms I 45 to which arepivoted connecting arms 50 pivoted as at 51. The arms 50 are angularly disposed andin turn pivoted, as at 52, to the ing arms of the compressing plates 88, to

move in such a manner that the compressing plates are normal to the cam tracks during the compressing or baling stroke. Thus, it will be seen that the maximum power is exerted during the baling operation and that the withdrawal of the compressing plates from the stream of hay is at such an angle as to avoid interference with the compression.

Berlin-g chamber The compressing plates 38, in the course of their movement, sweep the hay in the direction toward the chamber wherein the hay is,

baled. The entrance to the baling chamber is between the cam tracks 47 and 48 and along a tangential portion of thecam tracks designated by numerals 53 in Fig. 6. It will also be noted, by inspection of Fig. 6, that the plates 38 are in a plane substantially normal to the tangential faces of the cam tracks during this baling operation and that the plates extend a distance approximating the width of the space between the respective tracks. Thus the plates assure the movement of the hay into the baling chamber. Moreover,the plates of each of the pair of mechanisms are staggered so that they fall intermediate of each other during the baling operation as clearly shown in Fig. 6. The hay is thus forced-into baling chamber 54 which is provided with an abutment at its rear end and against which the hay is delivered and compacted by succeeding portions of hay introduced into the chamber. The chamf ber 54 is provided with dogs 55 located as shown in Fig. 6 and of a type illustrated in Fig. 15. The dogs'are pivoted at a suitable point as at 56 and have a tooth bevelled on one face as at 57 and having another face 58 normal to the direction of the hay. The dogs are spring actuated as by an expansion spring 59 designed to tend to maintain the dogs in fixed position.

The baling chamber is subjected to heavy compression and is braced by T-iron construction as shown in Fig. 14. The top casting has arms 60 extending downward on each side of the brace 61 to which it is bolted. A bottom casting may be similarly employed.

The chamber 54 is provided with a door 62 provided with locking means of a suitable type, for example of a socket and rod type such as designated by numerals 63 and 64.

It is contemplated that provision be made source of power means of. a coupling as at for the wiring of 'the'barles and. it is also'contemp'lated that provision bemade for the use of division blocks but as these elements are well known in the act it is not necessary to specifically describe the same. J

Operation In operation thermachine heretofore de" scribed is attached to a tractor or similar land a suitable connection to the prime mover i'sm adeto the shaft 3. Thus the machineis drawn or propelled over the ground and power is applied to effect operation of the various parts. Hay is'gathered or pitched on to the conveyor which conducts the hay into the body of the machine. The conveyor-may be elevated or lowered a desired amountby suitable mechanism as indicated Fig. 1. The action of the conveyor is positiveand the s tongs rassure'the elevating and carrying of the hay to the bodyof the machine. y

Uponthe elevation of the hay,the forks pick it from the conveyor and toss or move it into the paths of the plates 38 where the hay i is caused to pass in the channel provided by the tangential faces of the cam tracks and so intothe ba ling chamber. The hay is thus subj ected to a continuous compression and the degree of compression is increased as the hay i is compacted into the chamber. In passing into the chamber the hay passes beneath the dogs 55 and the arrangement of the dogs is such as to permit the passage into the chamber but to prevent the reverse movement of the H10 material as will be apparent from inspection of 15 and the'foregoing description. VVhen the hay is compacted to :asufficient degree or when a standard bale is realized, the

:operationof the compressing mechanismrnay m5 I be interrupted and the bale thus formed may be suitably wired and withdrawn from the chamber in a well known manner.

I-cla im: y 1'. A baling press comprising in combina- 3M0 tion, means for receiving material to be ibaled and means for compressing such material, said compressing means comprising a pair of opposed rotary elements each providedwith a plurality of plates adapted to exert compres c sion upon the material being baled during the rotation of the elements and so arranged that the compressing effects of the plates are exerted injstaggered relationship on the material and during the compressing operation.

2. A baling press comprisingin combination, means for receiving material to be baled and means for compressing such material, said compressing means comprising a plurality of rotary elements, each provided 53125 with a'plurality of pressing plates, said plates being mounted axially of the elements and being connected to the axis by a plurality of connections lying in substantially the same plane, said elements also being provided with r a perimetrical cam track, and means connecting the plates and trackfor guidance of the plates during their movement. a i a '3. A baling press comprising in: combination, means for receiving material to'be baled and means for compressing such material, said compressing means=comprising a plurality of rotary elements, each provided with a. plurality of pressing plates, saidplates being mounted. axially, of the elements and beingconnected to the axis by a plurality of connections lying in substantially the same plane, said elements also being provided with a pair of perimetrical cam tracks and means Y ing also a toggle connection between the plate connecting the.- platesand the tracks for guidance ofthe plates during their movement.

V 4. A baling press comprising in combination, meansfor receiving material to be baled and means 'for compressing such material, said compressing means comprising a plurality of rotary elements, each provided with. a plurality of pressing'plates, said plates being mounted axially of the elementsand being dually connected to the axis, the dual connection of the plates including a radial rod and an arm connecting the same to the plate adapted to exert a thrust thereon and includand another radial connection whereby to effect a sweeping movement of the first plate in a directionwsubstantially normal to the cam track during its compressing stroke while permitting an angular Withdrawal of the plate upon the completionof thatstroke.

5. A baling press comprising in combination, means for receiving material tobe baled and means for compressing suchfmaterial, said compressing meansa'comprlslng a plurality of rotary elements,each provided with a plurality of pressing plates, said plates being mounted axially of the elements and being duallyconnected to the axis, the cam track of each of the compressing elements being .tangential for a portion of its length and the pair of'compressing elements being so arranged that the tangential portlons of the respective cam tracks; define Walls-in substantial alignmentwith the Walls of the baling chamber. 1

In testlmony whereof Iafiix my signature.

LLOYD MARKT.- 

